we can define black hat as Disguise and deception of search engines which make search engine forced to see something in some pages somewhere different than what the visitor see in the same page !

there is some types of  SEO which Classified by search engines as black hat SEO leads your website banned and deleted from search engine results because of non trust .

check next points and don’t do it in your SEO steps :

1-  Don’t use small font ( not seen by normal eyes ) this is cheating and Manipulation

2- don’t use hidden or Invisible words in your pages ( using white color as a font and your background is white too ) .

3- don’t use link exchange with websites not the same as your website interest for example exchange links with health website and your site about sports !

4- don’t use fake keywords ” for example use ( money ) as keyword and your site talk about health ” .

5- try to use .htaccess file in redirect not the classic ” normal ” code .

6- try to remove pages which make 404 ERROR  because you lose search engines trust .

7- don’t copy pages from other sites using the same content, keywords, Title, Description

8- give nofollow tags on links which is not useful for your readers and search engines because much links maybe make your site kicked off search results .

9- some pages ” websites ” use hidden keywords ( use the same color of background ) and put only one link so the visitor see it alone in this page( different color ) which load him to another webpage so when search engines discover it , both of this sites get banned ( you will notice it in sandbox ) .

some friends suffer from Google because Google put them site in sandbox and this is danger be careful and always use white hat not black one , whitehat will improve your site , it is long term but effective way .

search engines are smart so don’t try to cheat them , and remember that search engine isn’t only search engine which found you the information you searching about , but it try to bring you trusted results so they always filter the results .